I posted this on my tumblr but I dont really get any notice there so will post it here too
Just posting about it incase it is of use to anyone else
I had tried all the different styles of STPs and none of them work for me at all. They all leak everywhere and were just unusable for me, no way I could even risk using them in public. I came across this one and decided to try it anyway and it has been the only one that works for me

It is also very cheap at 99p (or just over $1 on ebay.com) with free shipping. It ships from china so it can take several weeks to arrive
It has leaked a few times but I think that was down to user error not the product itself. My very first time using it it worked perfectly. Its been great for me. I can use urinals in public and not overly worry about any problems. The ones I have had luckily were at home. Never had a problem with it in public. I cant really fault it for use or price. It does what you need it to do and for the price it is certainly worth trying if you have trouble using other styles of STP or just cant afford them. For like $1.11 with free shipping its not much of an investment and has been more than worth it for me
There are of course some cons to it as you can imagine. It is just an STP, it cannot be used with packing so if I intend to use this in public when Im out I cant use a packer as it will be in the way of using this. You could but you'd have to switch it out before using it. It also cant really be kept in underwear so when I go to the bathroom I have to go into a stall first and sort it out with position before I go to a urinal. Thats just incase another guy comes in while Im doing that. Also means it needs to be taken out after use. I just zip up and wash my hands and stuff if another guy is around and wait for him to leave before I do so though, or go into a stall and take it out. The last con is it wont of course pass at a urinal if it is seen. I am wary of using urinals for these reasons and only do so when its quiet and I get time before someone else comes in. If it was a busy bathroom then I'd go in a stall and stand rather than risk the urinal
Sum up cons:
- Cant be used as packer
- Needs to be put in and removed after use
- Wont pass at urinal if seen
Advantages:
- CHEAP
- Does its job
- Better alternative to trying to make something home made
- Much better than using nothing which is the situation many are in
- Can use urinals with it
Certainly would recommend this to anyone. Particuarly for the price, why not give it a try. Not much to lose. Especially if other STP designs dont work for you as was the case for me, finding something that works and you feel confident using can make a lot of difference
If you are interested here is a link to it on ebay, if you can ignore all the triggering terminology (as it is aimed at women):
HereI managed to get the last orange one, they arent being made anymore apparently. I was put off by the feminine lavendar and pink colours but if it works then its still worth it if you can deal with it
Also been planning on trying to adapt this with a packer to overcome the packing issue and worrying about how it looks at the urinal but not got to finishing it yet. Not sure it will actually work but trying it anyway. Can get back here later with whether that works or not